.problem-container{
  width: 100%;
  height: 100%;
}

.problem-pie{
  display: inline-block;
  width: 40%;
  height: 50%;
  vertical-align: top;
}

.problem-bar{
  display: inline-block;
  width: 60%;
  height: 50%;
  vertical-align: top;
}

.problem-line{
  height: 50%;
}